{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:IVYKA36DRZZ7P6L63MC3M7AOHP","short_pith_number":"pith:IVYKA36D","canonical_record":{"source":{"id":"1711.10428","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.OC","submitted_at":"2017-11-28T17:39:18Z","cross_cats_sorted":[],"title_canon_sha256":"6117d08792dfdb9638fc70c678f8e288c0f78e776aa2bfe87af293441e8c1604","abstract_canon_sha256":"20e5c983ce3323c16919eee31f973627045cca8c202a5290a86256e3aa9cfae1"},"schema_version":"1.0"},"canonical_sha256":"4570a06fc38e73f7f97edb05b67c0e3be45c94da154d831fae0dc299bf67cdd4","source":{"kind":"arxiv","id":"1711.10428","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1711.10428","created_at":"2026-05-18T00:29:22Z"},{"alias_kind":"arxiv_version","alias_value":"1711.10428v1","created_at":"2026-05-18T00:29:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1711.10428","created_at":"2026-05-18T00:29:22Z"},{"alias_kind":"pith_short_12","alias_value":"IVYKA36DRZZ7","created_at":"2026-05-18T12:31:21Z"},{"alias_kind":"pith_short_16","alias_value":"IVYKA36DRZZ7P6L6","created_at":"2026-05-18T12:31:21Z"},{"alias_kind":"pith_short_8","alias_value":"IVYKA36D","created_at":"2026-05-18T12:31:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:IVYKA36DRZZ7P6L63MC3M7AOHP","target":"record","payload":{"canonical_record":{"source":{"id":"1711.10428","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.OC","submitted_at":"2017-11-28T17:39:18Z","cross_cats_sorted":[],"title_canon_sha256":"6117d08792dfdb9638fc70c678f8e288c0f78e776aa2bfe87af293441e8c1604","abstract_canon_sha256":"20e5c983ce3323c16919eee31f973627045cca8c202a5290a86256e3aa9cfae1"},"schema_version":"1.0"},"canonical_sha256":"4570a06fc38e73f7f97edb05b67c0e3be45c94da154d831fae0dc299bf67cdd4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:29:22.156301Z","signature_b64":"GcGLSZmXmLYWaQ8FP+dcb4g3uB5VXxIA1WD0WBH014ErjB6LUt/Nu6NPIspPCCQRERxlYLPbv5LJlmjCewxVBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4570a06fc38e73f7f97edb05b67c0e3be45c94da154d831fae0dc299bf67cdd4","last_reissued_at":"2026-05-18T00:29:22.155470Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:29:22.155470Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1711.10428","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:29:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"siObGSVFdREEvObf9rr9Gu1Qp1OOCZ3U1I3xTsE2y7kftqwbEFLhRaXNW86NIzYGTCM7Gs2PSwAQaO79vKJrDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T00:34:42.928634Z"},"content_sha256":"1eca404a641d70ef3c10c77aa8c6c11e6f436a8d04a004ac33125d6dc85effd3","schema_version":"1.0","event_id":"sha256:1eca404a641d70ef3c10c77aa8c6c11e6f436a8d04a004ac33125d6dc85effd3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:IVYKA36DRZZ7P6L63MC3M7AOHP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Bound Strengthening Method for Optimal Transmission Switching in Power Systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"math.OC","authors_text":"Alper Atamturk, Javad Lavaei, Salar Fattahi","submitted_at":"2017-11-28T17:39:18Z","abstract_excerpt":"This paper studies the optimal transmission switching (OTS) problem for power systems, where certain lines are fixed (uncontrollable) and the remaining ones are controllable via on/off switches. The goal is to identify a topology of the power grid that minimizes the cost of the system operation while satisfying the physical and operational constraints. Most of the existing methods for the problem are based on first converting the OTS into a mixed-integer linear program (MILP) or mixed-integer quadratic program (MIQP), and then iteratively solving a series of its convex relaxations. The perform"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1711.10428","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:29:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wizfSlVdkoVocar405zeylW6JqNfdT81xfWdOMlveY4009J4QuS6TNiKkzQMjImmz3P//1CobJ6OhZ9RsqupAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T00:34:42.929076Z"},"content_sha256":"0950005c6e78e5fd7c8275a06e49f31b43ecb21b1b1c042f9553a4eeb1ece27a","schema_version":"1.0","event_id":"sha256:0950005c6e78e5fd7c8275a06e49f31b43ecb21b1b1c042f9553a4eeb1ece27a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IVYKA36DRZZ7P6L63MC3M7AOHP/bundle.json","state_url":"https://pith.science/pith/IVYKA36DRZZ7P6L63MC3M7AOHP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IVYKA36DRZZ7P6L63MC3M7AOHP/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-01T00:34:42Z","links":{"resolver":"https://pith.science/pith/IVYKA36DRZZ7P6L63MC3M7AOHP","bundle":"https://pith.science/pith/IVYKA36DRZZ7P6L63MC3M7AOHP/bundle.json","state":"https://pith.science/pith/IVYKA36DRZZ7P6L63MC3M7AOHP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IVYKA36DRZZ7P6L63MC3M7AOHP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:IVYKA36DRZZ7P6L63MC3M7AOHP","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"20e5c983ce3323c16919eee31f973627045cca8c202a5290a86256e3aa9cfae1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.OC","submitted_at":"2017-11-28T17:39:18Z","title_canon_sha256":"6117d08792dfdb9638fc70c678f8e288c0f78e776aa2bfe87af293441e8c1604"},"schema_version":"1.0","source":{"id":"1711.10428","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1711.10428","created_at":"2026-05-18T00:29:22Z"},{"alias_kind":"arxiv_version","alias_value":"1711.10428v1","created_at":"2026-05-18T00:29:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1711.10428","created_at":"2026-05-18T00:29:22Z"},{"alias_kind":"pith_short_12","alias_value":"IVYKA36DRZZ7","created_at":"2026-05-18T12:31:21Z"},{"alias_kind":"pith_short_16","alias_value":"IVYKA36DRZZ7P6L6","created_at":"2026-05-18T12:31:21Z"},{"alias_kind":"pith_short_8","alias_value":"IVYKA36D","created_at":"2026-05-18T12:31:21Z"}],"graph_snapshots":[{"event_id":"sha256:0950005c6e78e5fd7c8275a06e49f31b43ecb21b1b1c042f9553a4eeb1ece27a","target":"graph","created_at":"2026-05-18T00:29:22Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"This paper studies the optimal transmission switching (OTS) problem for power systems, where certain lines are fixed (uncontrollable) and the remaining ones are controllable via on/off switches. The goal is to identify a topology of the power grid that minimizes the cost of the system operation while satisfying the physical and operational constraints. Most of the existing methods for the problem are based on first converting the OTS into a mixed-integer linear program (MILP) or mixed-integer quadratic program (MIQP), and then iteratively solving a series of its convex relaxations. The perform","authors_text":"Alper Atamturk, Javad Lavaei, Salar Fattahi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.OC","submitted_at":"2017-11-28T17:39:18Z","title":"A Bound Strengthening Method for Optimal Transmission Switching in Power Systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1711.10428","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:1eca404a641d70ef3c10c77aa8c6c11e6f436a8d04a004ac33125d6dc85effd3","target":"record","created_at":"2026-05-18T00:29:22Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"20e5c983ce3323c16919eee31f973627045cca8c202a5290a86256e3aa9cfae1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.OC","submitted_at":"2017-11-28T17:39:18Z","title_canon_sha256":"6117d08792dfdb9638fc70c678f8e288c0f78e776aa2bfe87af293441e8c1604"},"schema_version":"1.0","source":{"id":"1711.10428","kind":"arxiv","version":1}},"canonical_sha256":"4570a06fc38e73f7f97edb05b67c0e3be45c94da154d831fae0dc299bf67cdd4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4570a06fc38e73f7f97edb05b67c0e3be45c94da154d831fae0dc299bf67cdd4","first_computed_at":"2026-05-18T00:29:22.155470Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:29:22.155470Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GcGLSZmXmLYWaQ8FP+dcb4g3uB5VXxIA1WD0WBH014ErjB6LUt/Nu6NPIspPCCQRERxlYLPbv5LJlmjCewxVBg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:29:22.156301Z","signed_message":"canonical_sha256_bytes"},"source_id":"1711.10428","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1eca404a641d70ef3c10c77aa8c6c11e6f436a8d04a004ac33125d6dc85effd3","sha256:0950005c6e78e5fd7c8275a06e49f31b43ecb21b1b1c042f9553a4eeb1ece27a"],"state_sha256":"8908e31aa507217a0f661fde8764e5c7e3f1dea234267d3f1667e8ff0637d365"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JEwnBpMorNf/JFm+XTOKgpZy0c795Dw+1KqyBrfrBLZs7e2WYhJa+USUiDpPF/QGy/2uEA9ichjqubp39kelAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T00:34:42.932116Z","bundle_sha256":"5764b9b3f0ba1e3048234decb9c4c7d1c28436dcffb683a3665ce8b32a5cad8b"}}